Marshall Model #1917 JMP PA 20, T1917 Cabs Year1971 Serial Number43670CModel1917Watts20Folders Amp Archives Marshall 18 and 20 Watt Models 20 Watt Models Model #1917 PA 20Model #1917 JMP PA 20, T1917 Cabs 1971 SN 43670C 7Images Leave a Comment Cancel replyYou must be logged in to post a comment.